JPH1122906A - Bracing for heating tube panel and exhaust-heat recovery boiler - Google Patents
Bracing for heating tube panel and exhaust-heat recovery boilerInfo
- Publication number
- JPH1122906A JPH1122906A JP17556497A JP17556497A JPH1122906A JP H1122906 A JPH1122906 A JP H1122906A JP 17556497 A JP17556497 A JP 17556497A JP 17556497 A JP17556497 A JP 17556497A JP H1122906 A JPH1122906 A JP H1122906A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- header
- heat recovery
- recovery boiler
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、横置き型の排熱回
収ボイラに係わり、管寄せ部の振れ止め装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal exhaust heat recovery boiler and, more particularly, to a steadying device for a header portion.
【0002】[0002]
【従来の技術】高効率発電の複合発電プラントは、先
ず、ガスタービンにより発電を行うと共に、ガスタービ
ンから排出された排ガス中の熱を排熱回収ボイラにおい
て回収し、かつ、排熱回収ボイラで発生した蒸気により
蒸気タービンを駆動させて発電を行うものである。2. Description of the Related Art A high-efficiency combined cycle power plant first generates electric power by a gas turbine, collects heat in exhaust gas discharged from the gas turbine in a waste heat recovery boiler, and uses the waste heat recovery boiler. The generated steam drives a steam turbine to generate power.
【0003】この複合発電プラントは発電効率が良いだ
けでなく、ガスタービンの特性である負荷応答性が高
く、急激な電力需要の増加においても十分に対応し得る
という利点がある。図3に、タービン排ガス排ガスの熱
を回収する従来の排熱回収ボイラの構造を示す。[0003] This combined cycle power plant has the advantages of not only high power generation efficiency but also high load responsiveness, which is a characteristic of gas turbines, and can sufficiently cope with a sudden increase in power demand. FIG. 3 shows a structure of a conventional exhaust heat recovery boiler that recovers heat of turbine exhaust gas exhaust gas.
【0004】図3において、排熱回収ボイラに導入され
たガスタービンの排ガスGは、過熱器1、高圧蒸発器2
を経て、脱硝装置3に至り、排ガス中の窒素酸化物(N
Ox)を除去する。続いて、排ガスは高圧蒸発器4、高
圧節炭器7、低圧蒸発器8及び低圧節炭器11を経て系
外に排出される。この間に発生した高圧主蒸気S1およ
び低圧主蒸気S2は、図示していない蒸気タービンの動
力源、所内熱源として利用される。In FIG. 3, exhaust gas G of a gas turbine introduced into an exhaust heat recovery boiler includes a superheater 1 and a high-pressure evaporator 2.
Through the denitration apparatus 3 and the nitrogen oxides (N
Ox) is removed. Subsequently, the exhaust gas is discharged out of the system through the high-pressure evaporator 4, the high-pressure economizer 7, the low-pressure evaporator 8, and the low-pressure economizer 11. The high-pressure main steam S 1 and the low-pressure main steam S 2 generated during this time are used as a power source of a steam turbine (not shown) and an in-plant heat source.
【0005】なお、排熱回収ボイラには、上記機器の他
に、高圧蒸発器4に接続した高圧ドラム5と高圧降水管
6、低圧蒸発器8と低圧節炭器11に接続した低圧ドラ
ム9と低圧降水管10等が配設されている。[0005] In addition to the above equipment, the exhaust heat recovery boiler includes a high pressure drum 5 and a high pressure downcomer 6 connected to a high pressure evaporator 4, and a low pressure drum 9 connected to a low pressure evaporator 8 and a low pressure economizer 11. And a low pressure downcomer 10 and the like.
【0006】図4(図3のA−A矢視図)には排熱回収
ボイラ内の伝熱管16群の支持装置を示す。排熱回収ボ
イラは、その高温ダクト(煙道)本体がケーシング12
と該ケーシング12の内側に内張りされた保温材13か
ら構成されている。このダクト本体に、炉内圧が作用し
てケーシング12が大きく変形しないようにするため
に、ケーシング12は、その周囲を支持する支持部材1
4によって補強されている。FIG. 4 (a view taken along the line AA in FIG. 3) shows a supporting device for the heat transfer tubes 16 in the heat recovery steam generator. The exhaust heat recovery boiler has a high-temperature duct (flue) body whose casing 12
And a heat insulating material 13 lined inside the casing 12. In order to prevent the casing 12 from being greatly deformed by the furnace pressure acting on the duct body, the casing 12 is provided with a support member 1 for supporting the periphery thereof.
4 reinforced.
【0007】このダクト本体には、上部管寄せ15、伝
熱管16及び下部管寄せ17により構成された伝熱管パ
ネル(伝熱管群)が内蔵されている。図4に示す上部管
寄せ15は吊り部材27によりケーシング12に吊り下
げられていて、この構造の伝熱管群は吊り下げ型のもの
である。また、図5には図4のA−A矢視図を示してい
る。The duct body contains a heat transfer tube panel (heat transfer tube group) constituted by an upper header 15, a heat transfer tube 16 and a lower header 17. The upper header 15 shown in FIG. 4 is suspended from the casing 12 by a suspension member 27, and the heat transfer tube group of this structure is of a suspended type. FIG. 5 is a view taken in the direction of arrows AA in FIG.
【0008】この伝熱管群支持装置の組立て手順は次の
通りである。まず、伝熱管16の下部管寄せ17の下側
に、排ガス流れ方向に平面を向けたラグ23(23a〜
23b)を取付ける。このラグ23を挟み込むように、
管寄せ側取付金具25を配し、ピン24で接合する。そ
して、排ガス流れ方向の最前流と最後流の下部管寄せに
設けるラグ23aのピン穴は丸穴とし、上記管寄せ側取
付金具25の自重を支持するが、中央部の伝熱管群の下
部管寄せ17に設けるラグ23bのピン穴は、鉛直方向
に長い長穴とする。これは各下部管寄せ17には鉛直方
向の相対的伸び差があることから、前記長穴でこの相対
的な伸び差を吸収させるためである。The procedure for assembling the heat transfer tube group supporting device is as follows. First, on the lower side of the lower header 17 of the heat transfer tube 16, a lug 23 (23a to 23a
23b) is attached. So as to sandwich this lug 23,
A header-side mounting bracket 25 is provided and joined with a pin 24. The pin holes of the lugs 23a provided in the lowermost headers of the foremost stream and the laststream in the exhaust gas flow direction are round holes to support the weight of the header-side mounting bracket 25. The pin hole of the lug 23b provided on the shifter 17 is a long hole elongated in the vertical direction. This is because each of the lower headers 17 has a relative difference in vertical extension, so that the long hole absorbs the relative difference in expansion.
【0009】次に、ケーシング12の外面に取り付けた
支持梁21からケーシング12の内部にポスト22を取
付け、排ガス流れ方向にポスト22を挟み込むように、
下部の管寄せ側取付金具25に設けたブラケット26に
より取付支持し、各伝熱管群の管寄せ部の鉛直方向の伸
縮量を吸収し得る構造に取り付ける。Next, a post 22 is attached to the inside of the casing 12 from the support beam 21 attached to the outer surface of the casing 12, and the post 22 is sandwiched in the exhaust gas flow direction.
It is mounted and supported by a bracket 26 provided on a lower header-side mounting bracket 25, and is attached to a structure capable of absorbing a vertical expansion / contraction amount of a header portion of each heat transfer tube group.
【0010】[0010]
【発明が解決しようとする課題】前記従来の排熱回収ボ
イラにおける伝熱管群支持装置は、図5に示される様に
下部管寄せ側取付金具25とケーシング12側取付金具
であるポスト22の取り合い構造において、ケーシング
12側から張り出したポスト22を管寄せ17側の2個
のブラケット26により挟み込み、伝熱管群を支持する
ようになっていた。As shown in FIG. 5, the heat transfer tube group supporting apparatus in the conventional heat recovery steam generator has a lower pipe-side mounting bracket 25 and a post 22 which is a casing 12-side mounting bracket. In the structure, the post 22 projecting from the casing 12 side is sandwiched between two brackets 26 on the header 17 side to support the heat transfer tube group.
【0011】しかし、管寄せ17側取付金具25は、ボ
イラの起動時および停止時に上下方向への熱伸びにより
移動することから、前記ケーシング12側と管寄せ17
側の取り合い部が摺動し、さらに管寄せ17と接続され
る連絡管32の反力も同時に作用し、上記取り合い部の
摺動部分においてボイラの起動および停止時に異音が発
生する。However, since the header 25 is attached to the casing 12 and the header 17 because the fitting 25 moves vertically due to thermal expansion when the boiler is started and stopped.
The connecting portion on the side slides, and the reaction force of the connecting pipe 32 connected to the header 17 also acts at the same time, and abnormal noise is generated when the boiler is started and stopped in the sliding portion of the connecting portion.
【0012】前記取り合い部の摺動部分の異音発生を防
止するために、実際は連絡管32自身を柔軟性のある配
管配置とし、管寄せ17側への大きな配管反力が作用し
ないようにしている。In order to prevent the generation of abnormal noise in the sliding portion of the connecting portion, the connecting pipe 32 is actually arranged with a flexible pipe so that a large pipe reaction force does not act on the header 17 side. I have.
【0013】しかし、それでも、ボイラの起動時および
停止時に前記管寄せ17の上下方向の熱伸び移動時に、
管寄せ17側とケーシング12側の取り合い部におい
て、ある一定期間連続して異音が発生する問題があっ
た。However, even when the boiler is started and stopped, the thermal expansion movement of the header 17 in the vertical direction causes
At the joint between the header 17 side and the casing 12 side, there is a problem that abnormal noise is generated continuously for a certain period of time.
【0014】本発明の課題は、毎日起動および停止を繰
り返し、運用される排熱回収ボイラにおいて、伝熱管の
管寄せ側とボイラケーシング側の取り合い部における摺
動部分に異音を発生させない構造を提供することにあ
る。An object of the present invention is to provide a waste heat recovery boiler which is repeatedly started and stopped every day and which does not generate abnormal noise in a sliding portion of a joint between a heat exchanger tube side and a boiler casing side. To provide.
【0015】[0015]
【課題を解決するための手段】本発明の上記課題は次の
構成によって解決される。ガスタービンからの排ガス用
煙道を形成するケーシングに内蔵され、鉛直方向に配置
した伝熱管パネルの上部と下部にそれぞれ管寄せを備え
た排熱回収ボイラにおいて、伝熱管パネルの上部管寄せ
を吊り装置によりケーシングで支持し、下部管寄せはケ
ーシングに対して下部管寄せ側の取付金具とケーシング
側の取付金具をリンク機構で接続した排熱回収ボイラの
伝熱管パネルの振れ止め装置である。The above object of the present invention is attained by the following constitution. In an exhaust heat recovery boiler that is built into a casing that forms a flue for exhaust gas from a gas turbine and has a header at the top and bottom of a vertically arranged heat transfer tube panel, the upper header of the heat transfer tube panel is suspended. The lower header is a steadying device for a heat transfer tube panel of an exhaust heat recovery boiler, in which a lower header and a mounting bracket on the casing are connected to the casing by a link mechanism.
【0016】前記本発明の下部管寄せ側の取付金具とケ
ーシング側取付金具のリンク機構は、前記両方の取付金
具にそれぞれ両端部を回転自在に取り付けられたリンク
からなり、該リンク機構のケーシング側取付金具とリン
ク機構との接続部分をリンクの熱伸びの起点とすること
ができる。The link mechanism between the lower bracket and the casing-side mounting bracket of the present invention comprises a link having both ends rotatably mounted on both of the mounting brackets. A connection portion between the mounting bracket and the link mechanism can be used as a starting point of thermal expansion of the link.
【0017】このとき、下部管寄せの取付金具とケーシ
ング側支持金具の双方をピンを介してリンクで接続し、
さらに管寄せと接続する連絡管の配管反力が管寄せ側に
作用する方向と、リンク機構のケーシング側の取付金具
の接続部分をリンクの熱伸び基準とする伸び方向を合致
させることが望ましい。At this time, both the lower bracket fitting and the casing-side support bracket are connected by a link via a pin,
Further, it is desirable that the direction in which the pipe reaction force of the connecting pipe connected to the header acts on the header side coincides with the extension direction based on the thermal expansion of the link at the connection portion of the mounting bracket on the casing side of the link mechanism.
【0018】このような下部管寄せ側とケーシング側の
各支持金具をリング機構により連結すると、ボイラの起
動時および停止時に発生する伝熱管群の管寄せの上下方
向熱伸びによる移動量と、ケーシング側のリンク機構と
の接続部分の位置を伸び基準とするリンク自身などのガ
ス温度による熱伸び量をリンク機構の回転により吸収す
ることができる。When the lower bracket and the casing are connected to each other by a ring mechanism, the amount of movement of the heat transfer tube group caused by the vertical thermal expansion of the heat transfer tube group generated when the boiler starts and stops, and By the rotation of the link mechanism, the amount of thermal expansion due to the gas temperature of the link itself or the like based on the position of the connection portion with the link mechanism on the side can be absorbed.
【0019】こうして本発明によれば、図5に示す従来
の排熱回収ボイラの構造の下部管寄せ側取付金具とケー
シング側取付金具との取り合い部における摺動部分が無
くなるため、排熱回収ボイラの起動時および停止時に、
伝熱管の管寄せ側とボイラケーシング側の取り合い部に
異音が発生することは無くなる。Thus, according to the present invention, there is no sliding part at the joint between the lower header-side fitting and the casing-side fitting in the structure of the conventional exhaust heat recovery boiler shown in FIG. When starting and stopping,
No noise is generated at the joint between the header side of the heat transfer tube and the boiler casing side.
【0020】また、リンク機構の回転により、ボイラ運
転時において管寄せがガス流れ方向に若干移動するた
め、管寄せに接続する連絡管の配管反力も大幅に軽減さ
れ、従来から行われていた連絡管をフレキシブルな配管
配置にする構成を簡素化できる利点もある。本発明には
上記伝熱管パネルの振れ止め装置を備えた排熱回収ボイ
ラも含まれる。In addition, since the header moves slightly in the gas flow direction during the operation of the boiler due to the rotation of the link mechanism, the reaction force of the connecting pipe connected to the header is greatly reduced. There is also an advantage that the configuration in which the pipe is arranged in a flexible piping arrangement can be simplified. The present invention also includes an exhaust heat recovery boiler provided with the above heat transfer tube panel steady rest device.
【0021】[0021]
【発明の実施の形態】本発明の実施の形態について図面
と共に説明する。図3に示す排熱回収ボイラの構成は本
発明においても共通するものであり、過熱器1、高圧蒸
発器2、脱硝装置3、高圧蒸発器4、高圧節炭器7、低
圧蒸発器8及び低圧節炭器11をそれぞれ構成する伝熱
管群(伝熱管パネル)が鉛直方向に配置されている。ま
た、図1には、前記伝熱管16群の下部管寄せ17とケ
ーシング12との連結部分の一部断面図を示している。
下部管寄せ17には連絡管32が接続していて、該連絡
管32を介して蒸気ドラム6、9または降水管6、10
等の他の機器あるいは伝熱管パネル同士を前後で接続す
る構成になっている。Embodiments of the present invention will be described with reference to the drawings. The configuration of the exhaust heat recovery boiler shown in FIG. 3 is common to the present invention, and includes a superheater 1, a high-pressure evaporator 2, a denitration device 3, a high-pressure evaporator 4, a high-pressure economizer 7, a low-pressure evaporator 8, and Heat transfer tube groups (heat transfer tube panels) constituting the low-pressure economizer 11 are arranged in a vertical direction. FIG. 1 is a partial cross-sectional view of a connecting portion between the lower header 17 of the group of heat transfer tubes 16 and the casing 12.
A communication pipe 32 is connected to the lower header 17, and through the communication pipe 32, the steam drums 6 and 9 or the downcomers 6 and 10 are connected.
And other devices or heat transfer tube panels are connected before and after.
【0022】図1に示す下部管寄せ17とケーシング1
2側取り付け金具との連結機構は、伝熱管パネルの上部
管寄せ(図示せず)がケーシングに吊り下げられた場合
において、下部管寄せ17側の振れ止め構造を示すもの
である。また図2は図1の連結機構のボイラ運転時、停
止時における動きを説明する図である。The lower header 17 and the casing 1 shown in FIG.
The coupling mechanism with the two-side mounting bracket shows a steadying structure on the lower header 17 side when the upper header (not shown) of the heat transfer tube panel is suspended from the casing. FIG. 2 is a view for explaining the operation of the connecting mechanism shown in FIG. 1 when the boiler is operating or stopped.
【0023】下部管寄せ17側の振れ止め構造について
図1により説明する。伝熱管16の下端部は下部管寄せ
17に接続しているが、該下部管寄せ17は排ガス流れ
方向に平面を向けたラグ23を取付ける。このラグ23
を挟み込むように、管寄せ側取付金具25を設け、ピン
24でラグ23と取付金具25を連結する。図5で説明
したのと同様に、排ガス流れ方向の最前流と最後流の下
部管寄せに設けるラグ23aのピン穴は丸穴とし、上記
管寄せ側取付金具25の自重を支持するが、中央部の伝
熱管群の下部管寄せ17に設けるラグ23bのピン穴
は、鉛直方向に長い長穴(長円形の穴または溝状に長い
穴)とし、各下部管寄せ17には鉛直方向の相対的伸び
差を前記長穴で吸収させる。下部管寄せ側の取付金具2
5にはブラケット26’が設けられている。The steadying structure on the side of the lower header 17 will be described with reference to FIG. The lower end of the heat transfer tube 16 is connected to a lower header 17, and the lower header 17 is fitted with a lug 23 oriented flat in the exhaust gas flow direction. This lug 23
Is provided so that the lug 23 is sandwiched between the lug 23 and the mounting bracket 25. As described with reference to FIG. 5, the pin holes of the lugs 23 a provided in the lowermost headers of the foremost stream and the last stream in the exhaust gas flow direction are round holes, and support the own weight of the header-side mounting bracket 25. The pin hole of the lug 23b provided in the lower header 17 of the heat transfer tube group of each section is a vertically elongated hole (an oval hole or a groove-shaped elongated hole). The target elongation difference is absorbed by the elongated hole. Mounting bracket 2 on lower header side
5 is provided with a bracket 26 '.
【0024】一方、ケーシング12の外面に取り付けた
支持梁21からケーシング12の内部にポスト22が保
温材13を貫通して取り付けられている。そして、ケー
シング12側のポスト22と管寄せ17側のブラケット
26’の双方にピン穴をそれぞれ設け、双方をそれぞれ
ピン28、29を介してリンク30で接続する。On the other hand, a post 22 is attached to the inside of the casing 12 from the support beam 21 attached to the outer surface of the casing 12, penetrating the heat insulating material 13. Then, a pin hole is provided in each of the post 22 on the casing 12 side and the bracket 26 'on the header 17 side, and both are connected by the link 30 via the pins 28 and 29, respectively.
【0025】また、ケーシング側取付金具(ポスト)2
2のピン28の位置をリンク30自身の熱伸び基点と
し、排熱回収ボイラの内部のガス温度によるリンク30
の熱伸び方向と、管寄せ17に接続する連絡管32の運
転時の配管反力p(図2)が管寄せ17に作用する方向
を同一方向になるようにする。Also, a casing side mounting bracket (post) 2
The position of the second pin 28 is defined as the heat expansion base point of the link 30 itself, and the link 30 based on the gas temperature inside the exhaust heat recovery boiler is used.
And the direction in which the pipe reaction force p (FIG. 2) during operation of the connecting pipe 32 connected to the header 17 acts on the header 17 in the same direction.
【0026】ボイラの起動時および停止時に発生する管
寄せ17の上下方向への熱伸び移動およびケーシング1
2側の取付金具(ポスト)22のピン28を熱伸び基点
とするリンク30自身の炉内ガス温度による熱伸びをリ
ンク30の回転により吸収させる。Thermal expansion movement of the header 17 generated when the boiler starts and stops, and the casing 1
The rotation of the link 30 absorbs the thermal expansion caused by the gas temperature in the furnace of the link 30 itself, which is based on the pin 28 of the mounting bracket (post) 22 on the second side.
【0027】これを図2により説明する。ケーシング1
2側の取付金具(ポスト)22(図1参照)のピン28
の位置aが熱伸び基点となるが、ボイラ停止時には管寄
せ17側のブラケット26’(図1参照)のピン29の
位置bとピン28の位置aとの間のリンク30の水平取
付長さcを有するが、ボイラの運転の開始により連絡管
32に配管反力pが作用することおよび管寄せ17の上
下方向に熱伸び作用があることにより、リンク30はピ
ン28の位置を中心として角度dだけ回転し、リンク3
0の水平方向のずれeが生じる。さらに、リンク30の
熱伸びがあるので、その分のリンク30の水平方向のず
れfが加わる。その結果、ボイラ運転時の管寄せ17側
のブラケット26’のピン29は位置gに移動し、位置
gはボイラ停止時のピン29の位置bとの間の上下方向
のずれhが生じる。This will be described with reference to FIG. Casing 1
Pin 28 of mounting bracket (post) 22 on two sides (see FIG. 1)
Is the thermal expansion base point, but when the boiler is stopped, the horizontal mounting length of the link 30 between the position b of the pin 29 and the position a of the pin 28 of the bracket 26 '(see FIG. 1) on the header 17 side is shown. However, since the pipe reaction force p acts on the connecting pipe 32 at the start of the operation of the boiler and there is a thermal expansion action in the vertical direction of the header 17, the link 30 is angled around the position of the pin 28. Rotate by d, link 3
A horizontal displacement e of 0 occurs. Furthermore, since the link 30 has thermal expansion, a horizontal shift f of the link 30 is added to that extent. As a result, the pin 29 of the bracket 26 'on the header 17 during the boiler operation moves to the position g, and the position g is displaced in the vertical direction h from the position b of the pin 29 when the boiler is stopped.
【0028】また、リンク30が回転可能に設置されて
いることで、管寄せ17の部分は、ガス流れ方向にも若
干移動させることができ、管寄せ17と接続される連絡
管32の配管反力が管寄せ17側に作用する力が大幅に
軽減される。Further, since the link 30 is rotatably installed, the header 17 can be moved slightly in the gas flow direction, and the connecting pipe 32 connected to the header 17 can be moved in the opposite direction. The force acting on the header 17 side is greatly reduced.
【0029】[0029]
【発明の効果】本発明によればボイラの起動時および停
止時に発生する伝熱管管寄せなどにより熱伸びを吸収す
ることにより、管寄せ側とボイラケーシング側の取り合
い部での異音の発生が無くなった。According to the present invention, the generation of abnormal noise at the joint between the header side and the boiler casing side can be prevented by absorbing the thermal expansion caused by the heat transfer pipe header generated at the time of starting and stopping the boiler. Lost.
【図1】 本発明の排熱回収ボイラの伝熱管管寄せとケ
ーシングの連結部の振れ止め構造を示す図である。FIG. 1 is a view showing a steadying structure of a connecting portion between a heat transfer tube header and a casing of an exhaust heat recovery boiler of the present invention.
【図2】 図1の連結機構のボイラ運転時、停止時にお
ける動きを説明する図である。FIG. 2 is a view for explaining the operation of the connecting mechanism shown in FIG. 1 when the boiler is operating or stopped.
【図3】 本発明が適用される横置き型排熱回収ボイラ
の断面図である。FIG. 3 is a cross-sectional view of a horizontal heat recovery steam generator to which the present invention is applied.
【図4】 従来構造における排熱回収ボイラの断面図で
ある。FIG. 4 is a cross-sectional view of an exhaust heat recovery boiler having a conventional structure.
【図5】 従来構造における排熱回収ボイラの管寄せと
ケーシングの連結部の振れ止め構造図である(図4のA
−A矢視図)。FIG. 5 is a diagram showing a steadying structure of a connecting portion between a header of an exhaust heat recovery boiler and a casing in a conventional structure (A in FIG. 4).
-A arrow view).
1 過熱器 2 高圧蒸発器 3 脱硝装置 4 高圧蒸発器 5 高圧ドラム 6 高圧降水管 7 高圧節炭器 8 低圧蒸発器 9 低圧ドラム 10 低圧降水管 11 低圧節炭器 12 ケーシング 13 保温材 14 支持部材 15 上部管寄せ 16 伝熱管 17 下部管寄せ 21 支持梁 22 ポスト 23 ラグ 24 ピン 25 下部管寄せ側取付
金具 26、26’ ブラケット 27 吊り部材 28、29 ピン 30 リンク 32 連絡管DESCRIPTION OF SYMBOLS 1 Superheater 2 High pressure evaporator 3 Denitration device 4 High pressure evaporator 5 High pressure drum 6 High pressure downcomer 7 High pressure economizer 8 Low pressure evaporator 9 Low pressure drum 10 Low pressure downcomer 11 Low pressure economizer 12 Casing 13 Heat insulation material 14 Supporting member 15 Upper header 16 Heat transfer tube 17 Lower header 21 Support beam 22 Post 23 Lug 24 Pin 25 Lower header-side mounting bracket 26, 26 'Bracket 27 Suspension member 28, 29 Pin 30 Link 32 Connecting pipe
Claims (4)
するケーシングに内蔵され、鉛直方向に配置した伝熱管
パネルの上部と下部にそれぞれ管寄せを備えた排熱回収
ボイラにおいて、 伝熱管パネルの上部管寄せを吊り装置によりケーシング
で支持し、下部管寄せはケーシングに対して下部管寄せ
側の取付金具とケーシング側の取付金具をリンク機構で
接続したことを特徴とする排熱回収ボイラの伝熱管パネ
ルの振れ止め装置。An exhaust heat recovery boiler which is built in a casing forming a flue for exhaust gas from a gas turbine and has a header at an upper portion and a lower portion of a vertically disposed heat transfer tube panel. An upper heat collector boiler is supported by a casing by a suspending device, and the lower heat collector is connected to the casing by a mounting mechanism on a lower head side and a mounting part on a casing side by a link mechanism. Heat tube panel steady rest device.
付金具のリンク機構は、前記両方の取付金具にそれぞれ
両端部を回転自在に取り付けられたリンクからなること
を特徴とする請求項1記載の排熱回収ボイラの伝熱管パ
ネルの振れ止め装置。2. The link mechanism between the lower header-side mounting bracket and the casing-side mounting bracket includes a link having both ends rotatably mounted on both of the mounting brackets. Sway stabilizer for heat transfer tube panel of waste heat recovery boiler.
ンク機構の接続部分を熱伸びの起点とするリンク機構の
伸び方向と、下部管寄せに接続した流体流路用連絡管の
配管反力が下部管寄せ側に作用する方向を合致させたこ
とを特徴とする請求項2記載の排熱回収ボイラの伝熱管
パネルの振れ止め装置。3. The extension direction of the link mechanism starting from the connecting point between the casing side mounting bracket of the lower header and the link mechanism as a starting point of thermal expansion, and the pipe reaction force of the fluid flow passage connecting pipe connected to the lower header. The steadying device for a heat transfer tube panel of an exhaust heat recovery boiler according to claim 2, wherein directions acting on the lower header side are matched.
装置を備えた排熱回収ボイラ。4. An exhaust heat recovery boiler comprising the heat transfer tube panel steady rest device according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17556497A JPH1122906A (en) | 1997-07-01 | 1997-07-01 | Bracing for heating tube panel and exhaust-heat recovery boiler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17556497A JPH1122906A (en) | 1997-07-01 | 1997-07-01 | Bracing for heating tube panel and exhaust-heat recovery boiler |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1122906A true JPH1122906A (en) | 1999-01-26 |
Family
ID=15998294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17556497A Pending JPH1122906A (en) | 1997-07-01 | 1997-07-01 | Bracing for heating tube panel and exhaust-heat recovery boiler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1122906A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022113484A1 (en) * | 2020-11-24 | 2022-06-02 | 三菱重工業株式会社 | Support mechanism for exhaust heat recovery boilers |
-
1997
- 1997-07-01 JP JP17556497A patent/JPH1122906A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022113484A1 (en) * | 2020-11-24 | 2022-06-02 | 三菱重工業株式会社 | Support mechanism for exhaust heat recovery boilers |
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